243222430400 has 168 divisors, whose sum is σ = 629652158016. Its totient is φ = 92349849600.

The previous prime is 243222430397. The next prime is 243222430403. The reversal of 243222430400 is 4034222342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243222430397) and next prime (243222430403).

It is a self number, because there is not a number n which added to its sum of digits gives 243222430400.

It is not an unprimeable number, because it can be changed into a prime (243222430403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2377097 + ... + 2477303.

It is an arithmetic number, because the mean of its divisors is an integer number (3747929512).

Almost surely, 2^243222430400 is an apocalyptic number.

243222430400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243222430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314826079008).

243222430400 is an abundant number, since it is smaller than the sum of its proper divisors (386429727616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243222430400 is a wasteful number, since it uses less digits than its factorization.

243222430400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100307 (or 100292 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 243222430400 its reverse (4034222342), we get a palindrome (247256652742).

The spelling of 243222430400 in words is "two hundred forty-three billion, two hundred twenty-two million, four hundred thirty thousand, four hundred".